<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="../css/bootstrap.css">
    <title>面包屑导航栏</title>
    <style>
        .breadcrumb-item + .breadcrumb-item::before{
            content: ">";
        }
    </style>
</head>
<body>
    <nav>
        <ol class="breadcrumb">
            <li class="breadcrumb-item"><a href="#">首页</a></li>
            <li class="breadcrumb-item"><a href="#">课程</a></li>
            <li class="breadcrumb-item actice">大数据</li>
        </ol>
    </nav>
</body>
</html>